McCulloch Mac 120 Chainsaw Engine Removal 

Very helpful. Could not have done it without this video. Thanks you manic mender. Now my mac 120 works like new

I love these little guys. They are not as difficult to work on as people claim.

A neighbour tossed a McCulloch Mac 120 in the trash and I was lucky to grab it before anyone else. I cleaned the exterior, added some gas/oil mix and she fired right up. The muffler is loose, and this video will help me with the steps to get to the muffler. Looks like only two bolts and I'm there. Thanks.

One of if not the best video in explanation of taking a chainsaw apart very well done thank you

Just purchased myself an old Mac 110 (in VGC) for $50, and wanted to know how to take it apart to clean it etc. Perfect video! Cheers.

Great Video- Now I don't have to remember where things go, I will just re-play your video. Thanks

Most impressive video and detailed presentation and commentary ! It's a real shame you did not keep up with bringing out videos. I hope everything is well and that we will see new videos comming through after all ! Best wishes !

It was a very helpful video. I also own a Mac 110. The carburetor wasn't working well and the engine didn't start, so it had to be overhauled. However, I just couldn't figure out how to remove the carburetor and couldn't repair it until now. By referring to this video, I can also repair it. Thank you.

I love chainsaw repair videos and watch lots of them. You, sir, have produced one of the very best I’ve seen. Very, very informative and to the point! GREAT job! Thank you!

That pull string mod😂 I just acquired a 160S and am getting started on getting her going. Thanx4 the vid. Helps quite a bit👍🏻

I also have a 120 and a 140 Mcculloch. Nice saw. Greetings from Germany Peter

Thanks for the Video! First time Mac owner and my 110 started leaking fuel badly. This video was sure helpful!!

Today I found one of these MAC120 while cleaning out a customers rubbish . It was complete . I took it home , checked spark was good. Then used a squirt of fuel into carby and it ran for a second. I began to see how to take carby . I started pulling apart slowly . Ended up with it in bits and couldn’t get motor out of back case. Rang a guy I know who fixed mowers for a living . He said there is a good bloke on RU-vid who will show you . Anyways I didn’t listen to him and kept going at it . I come so close to giving up and smashing it on the ground. Step by step I pulled apart carby and top diagram looked new. I used some compressed air to clean the carby . Refitted and cleaned coil and gapped. Slowly slowly it was going back together . Got to the stage where I could test start it . To my disbelief the engine started after four pulls . So it’s back together now but I have oil pissing out the bottom. I did guide the hose onto the tank . Anyone got any ideas? Do they crack the tank or is there a valve that gets stuck or hoses split etc . I’ll have another look tomorrow. Cute saw but absolute bitch to get to carby .

Great video and very informative thank you . I've been given a pair of 120's both with no spark so this has been a great help. Thank you .

Super demonstration, thank you...

Can anyone please give me the sizes of the crankshaft oil seals for the mac 120. Internal & external diameters , also the width. I have looked for these on line but no luck, unless another model would fit. Thanks for a very informative & well presented video. The best I have seen.

This video helped me get it apart. But how on earth do I hook my throttle linkage back up??

awesome video man! just bought a mac130 for 45€, looks like its in great condition, but it stalls and wont run properly so i have to take it apart. Much obliged!

Love the videos. I have A 110 that has no spark. I just want to break-it down to check the points and coil but it seems that parts are not available for this? A lot of work just to find out that you can’t get parts. Any comments are appreciated. Thank you snd great video.

Buenas Vidio muy muy bueno,, me han regalado una makina igual y me estaba rayando a cuenta de poder desmontar carburador,,, ahora lo veo fácil,,,, gracias,,,,,,,,,,,,, Saludos desde el Norte de España

I found one of these in a barn. 1978 and absolutely mint . Bar and case paint are like it was used once or twice and set down yesterday. I put fuel in it and she fired right up . Every part is original and nothing missing..it even has the bar sheath and scrench . I can't find anything on the internet that is nearly as nice to compare it to . Does anyone know what it could be worth? I may put it in an online auction it's so nice i can nearly appreciate it the way some fellas will. I posted it on craigslist barter for Rochester NY if anyone wants to check it out. She is purdy!

I striped my Mc Culluck chain saw to replace new fuel lines now I am having trouble reassemble the handles and spring position .

Good video. Why not remove the tank before removing the engine, that will also make it easier to remove and reattach the throttle linkage from inside the housing. That tab on the bottom is actually on the tank of the Mac Mini 35 which is almost identical to the 120. They didn't put the tab on the fuel line until after the Mac Mini 35. I also do not remove the aluminum handle nor remove the bolt by the spark plug.

Excellent!

I just got one of these babies today, I don't have that "fuzz" on that air cleaner. I thought it was kinda funny there was only this metal mesh thing filtering the air.

Well done video

I just replaced the crank shaft seals on my mc 140. it runs like a top.

Great job

Is there a video of you reversing the process? I took mine apart like you but things happen and 3 months passed. Now I can't remember lol

You are talented

Yep those Mini Macs or Eager Beavers are a pain in the Butt to get out sometimes ........ But LOL I am in need of 2 things ..... If you are on the major forums you might see my posts on them.... 1st one is a Poulan 2150 starter pulley.... 2nd one is a oil pump diaphram for a Homelite XL Numbers on the plate are 105074 then the serial is 80382004 Both are for a friend of mine and he needs to get em going for himself to start cutting...... Happy to pay for these items and shipping if you happen to have them..... Also I got ya subbed and I like what I see on your content. You are straight forward with your presentations...... Plus Tard Mon Ami ~!~!

Pretty cool

Great video, thanks for sharing

@manicmender do I know it's been 6 years but I'm desperate. Do you have a video re assembling the saw? I cannot figure out the throttle linkage for the life of me

The bar on my Mac 110 is 12" and sloppy. I cannot locate another replacement 12". Can I put a replacement 14" from Tractor supply on the 110 withot any problems? Also need a new bar securing bolt with better threads....suggestions? Thanx.

love that saw i had one but got lost one day

Thank you for a great video. I'll have a go at stripping down one of these and knowing what to expect

What spark plugs are the best for these? Link would help...

Thanks.

Thanks! Kind of nebulous how everything comes apart at first glance.

I have a Mac 160s and found the parts diagram but how do I know if it uses a zama or walbro carburetor?

O motor trabalha normalmente durante 30 segundos e pára. No ralenti aguenta-se bem. É a alimentação que não chega ao carburador? O tubo não está entupido. O que está mal? Alguém pode ajudar p. f. Obrigado

Bun tutorialul tau. Two six two.

Thanks good job

Thanks for the great how-to. I need a carb kit for my Eagerbeaver, it looks like the same one as in the video. Any idea of the part number?

Hi I am trying to find out about the McCullough Titan 7 I can not find any information about it on RU-vid. Do you know of any. Thanks.

Great video so how can I get parts

What is being popped on the throttle

in the mcCulloch chainsaw how to put engine back and excelerator linked and spring , can you help

Gazoline ou diesel?

I have a mini mac 25 like new. what is it worth.

I just got two of these saws and they need alot of parts. I hear they are not worth fixing. What is your opinion?

You got the chainsaw! Find some meat!

Hello could you help me.. i rebuilt the carburetor on my 130.. i noticed oil leaking from exhaust area.. what does that mean?? I got no start.. i haven't checked the points.. im no good with electrical..i also played with the throttle and idle screws and nothing..has clean fuel. It has spark..

Can you do a clip on a 510 pro mac. Finding it difficult to get to condenser out. Cheers

Great info but what's the trick to reconnecting the throttle linkage

Donde puedo encontrar conpra r carburador de una machcooloch 110 a qui. En nicaragua

Well made video... all I know is, I don't want to open mine up after watching this. SHEESH!!! Wudda PIA!!!

IT TOOK ME FRICKING 30 MINUTES TO UNDERSTAND WHERE THE FRICKING EXHAUST ISSSS😡😡😡😡

Good grief. How stupid an engineer do you have to be to design something like this?

commentary about bolt replication ? no... skip it

too much intro slides